Leaf-turning device



E. BEHR.

LEAF TURNING DEVICE. APPLICATION FILED AUGIS. 1919.

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LEAF TURNING DEVICE. APPLICATION FILED AUG.6, |919.

1,853,015. Patentedsept. 14,1920.r

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LEAF TURNING DEVICE. APPLICATION FILED AUG.6, I9I9.

' PatentedSept. 14, 1920.

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1,353,015. Patentedsept. 14,1920.

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ERNST BEHR, 0F SARATOGA SPRINGS,NEW YORK.

LEAF-TURNING DEVICE.

Specification yof Letters Patent.

Patented Sept. 14, 1920.

application ned August e, 1919. serial No. 315,706.

To all whom t may concern.'

Be it known that I, ERNST BEER, a citizen of the United States, residingat Saratoga Springs, in the'y county vof Saratoga and State of New York,have invented certain new and useful Improvements in Leaf-TurningDevices; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in what are generally termed leafturners, more especially for sheet music for pianos or stands. Y

It has for its object to provide for the ready turning of the sheets ofmusic without the direct interposition of the hand or its contact withthe sheets.

A further object is to carry out these ends with facility and expeditionand to provide an inexpensive and simple device for its intendedpurpose.

The invention consists of certain instrumentalities yand Jfeatures ofconstruction substantially as hereinafter more fully disclosed andparticularly defined by the appended claims.

In the accompanying drawings is illustrated the preferred embodimentofmy invention wherein it will be understood that various changes andmodifications as relate to the detailed construction and arrangement ofparts may be made without departing from the spirit or scope of theinvention asembraced in the claims.

In the drawings:

Figure 1 is a front elevation of my invention, partly in section.

Fig. 2 is an end elevation thereof.

Fig. 3 is a detailed end view thereof, showing more particularly themeans providing for the release of the spring-containing casings inallowing of the shifting of the leaf turner.

Fig. 4 is a plan view of my invention. Fig. 5 is a horizontal sectionthereof, taken just abovethe lower spring containing cas- Iig. 6 is afragmental perspective view on a somewhat enlarged scale showing morefully certain parts of Fig. 3.

Figs. 7, 8, 9, l0, 1l and l2 are further de tail views, 1n planandsection further dis-- closing the elements of Fig. 3 more particualarly as to the different positions assumed thereby during the operationof the machine.

Figs. 13, 14 and l5 represent a side elevation, a front elevation and aplan view of my invention as applied for use with respect to a stand.

Incarrying out my invention, I employ or provide what may be termed abracket or carrier 1, preferably consisting of a transverse member andopposite end members at right-angles to the latter, preferably in asingle structure. The transverse member has inserted centrallytherethrough the nutequipped end of a preferably bolt-like or pin member2, this being rigidly secured thereto, and upon the latter member issleeved a bushing 8, one end of the pin or bolt-member being preferablyflanged or enlarged, the resultant enlargement being angular and letinto a corresponding recess or socket in one end of said bushing for theretention of said pin 2. The opposite end of said bushing is laterallyextended, the resultant extension being cogged or toothed, thus forminga gear or pinion 3a which is intermeshed with a small gear or pinion 4for winding or putting under tension a spring 5, suitably connected tothe bushing 3 and to a casing 6 carried upon a shoulder of the bushing,as required in moving or turning the leaf-turner with the desired musicsheet or sheets, in one direction as vpresently more clearly seen.

Similarly a second spring 7 is housed in a second casing 8 carried upona shoulder of a bushing 9 having a cogged or toothed eX- tension forminga gear or pinion 10 which intermeshes with a pinion or gear 11 forwinding or putting under tension the second spring 7, as required inmoving the leafturner, with the desired music-sheet or sheets,oppositely to the direction in which the aforesaid leaf-turner is turnedor moved, as may become necessary. The gearings 4 and 11 have theirshafts 4a and l1, respectively, suitably journaled in the carrier 1 andarranged to be readily actuated by hand; also said gearings are heldagainst reverse movement by means of pawls or detents 4b, 4c pivote'dupon the carrier l and engaging said gearing, respectively. A spacingtubular member 4d sleeved upon the bushing 3 is interposed between, andretains the casings 6 and 8 in position with spect to the other parts ofthe device. Suitable rotary bearing members or balls 8a, are

interposed between the spring-containing casings and the generalinclosing therefor 1n order to reduce Vfriction and for` the smoothmovement of said casings.

The leaformusic-sheet turner12, only one being shown,'it beingunderstood that any number may be used, includes principallya preferablyL-shaped member 12l and fa hand actuated member 12b, said members 12a,12b` beingadapted to be vapplied soas to be moved horizontally in anarcuate plane to the pin vor bolt-like member 2, and to apreferably'laterally eXtendedV headed screw 13 threaded into the lowerend of said pin,`

conveniently provide for the accommodation of the vdevice for playingfrom a book in stead of from sheet-music, is suitably fixed to thecarrier 1, the adjustment between the Aframe and rack being effectedpreferably by means of keeper or loop terminals 15'UL on said rack,receiving the side members of said frame, and set screws 16a working insaid loop-terminals and engaging the frame side members, as clearlyshown in Fig. 1. f

Suitable stopping'slidesor members V17, 17 a are provided, two uponeachfspring-containing casingfY and 8, so arranged that lby theircooperation with other parts or instrumentalities presently referred to,they will restrict the'movement-of each casing to a predetermined arc in`effecting the actuation of theleaf er sheet turner asmore fullydisclosed hereinafter.

Levers 18, 18X are oppositely fulcrumed, with respect to the carrier 1and the VspringL containing casings6, 8, upon a rod or shaft Vr18a`supported ingthe carrier, and arranged Vfor cooperation withY thestopping slides or members 17 as presently seen vand for reverseactuation, as also presentlyseen. The levers 18, 18.X Iareconnectedpreferably by wires 18h, say three-sixteenths of aninch gage,to opposite levers 19 suitably fulcrumeid just `above the presentmusic'sheet rest of pianos, said levers 19 being provided each withwhatmay-be termed as a' hanger 20, having a button-hole like terminal 21to vprovide for indicatingwhich leaf to turn.

. The spring-casings are provided with pins or .plungers 22a, 22Xadapted t0 be engaged respectively -by the levers 18, 18X Aat one end ofeach, as will be apparent Yfrom Figs. 3,

4and 5a. T hepins orplungers are prefer- Y ably reduced at vreversedopposite ends for actuation by the levers 18, 18X. The reduced V.ends ofsaidpins are passed through apertures in-the bottoms of theSpring-.containing casings to extend therebelow for engagement with theleafor sheet turner to cause the latter to travel a predetermineddistance, or one half way around. Springs 23, 23'are applied to the pinsor plungers for automatic retention in initiall position-and automaticrelaxation, or disengaging movement, -when pressure is removedtherefrom. Zhen the pins or plungers 22a, 22X are de,- pressed or actedupon by the levers 18, 18X, which, as before stated, allow oftherequired movement of the leaf or sheet turner,

Vspring-pressed levers 24, 24'LL suitably pivlevers 24, the parts thusresuming their initial position for a subsequent like operation when theleaf or sheet turner is to'be again brought into action.

In Figs. 13, 14, and 15, is shown the application of my leaf orsheetturner to a music sheet stand 25, 25a designating the -support lsoorupright thereof,l the 4stability of which Y in upright positionVdepending upon the tripod or feet 26. Flexible connections lor members27 are providedv between pedalequipped levers 27X, pivoted upon saidfeet or tripod, and levers 18XX 'corresponding to the levers 18, 18Xabove referred te, said elements having associated therewith, assuggested by the foregoing .primary .embodiment of the invention, aycarrier orv bracket 528C, and in practice cooperating parts as'alsoVsetforth therein, and a rod 18m-.corresponding to the rodl 18a andsupported by the carrier 28, said rod 18C@- for-ming the pivot for thelever 18m. The flexible connections 27 and .the standfsupport'25 haveadjustably applied thereto, as at 29, means similar to E15, 16, 16a.V ofthe "primary disclosure and for the application of a frame and rackthereto.

VF rom the foregoing description andillusf tration as kexemplified bytheaccompanying drawings, it is believed that the'advantages and facilitiesof my invention have been fily disclosed and made readily appreciae.`

Having described my invention, what I claim and desire to secure byLetters Patent is:

l. The combination in a leaf-turner, of a spring-actuated member, meansfor containing said spring-actuated member, means provided for eifectingthe movement of saidy spring-actuated member, including a stopping slideon said spring-containing means, adapted to temporarily retain thelatter against movement, a plunger which serves to actuate the latch, alever adapted to depress said plunger, an additional spring-pressedlever adapted to hold the plunger depressed until released from itsdepressing lever, said plunger, simultaneously with the engagementtherewith of said depressing lever, acting upon said sliding stop toallow the turning of said spring-containing means and to force theleaf-turner out of engagement with said additional lever.

2. The combination in leaf-turner, of spring actuated members, means forcarrying said spring actuated members, and means including manuallyactuated members, stopping slides and spring-pressed pins arranged uponsaid spring-actuated members and adapted to engage said spring-actuatedmembers, levers carried by said spring-actuated members for temporaryengagement with said pins, said levers being adapted to release saidpins, said pins being adapted to act upon said stopping slides to allowthe turning of said spring-actuated members, said pins being adapted toforce said springactuated members out of engagement with said levers.

3. The combination in a leaf-turner, of a stand, spring-actuated means,means for containing said spring-actuated means, applied to said standand means for manually actuating said spring-actuated means from saidstand, means for effecting the movement of said spring-actuated means,including a stopping slide on said spring-containing means, adapted totemporarily retain said spring-containing means against movement," aplunger which serves to actuate the latch, a lever adapted to depresssaid plunger, an additional lever adapted to hold said plunger depresseduntil released from its depressing lever, said plunger, simultaneouslywith the engagement therewith of said depressing lever, acting upon saidsliding stop to allow the turning of said spring-containing means and toforce the leaf-turner out of engagement with said additional lever.

4. The combination in a leaf-turner, of a spring-actuated member, meansfor carrying said spring-actuated member, and means engagea-ble withsaid spring actuated member for automatically controlling the movementof said spring-actuated member, including a manually actuated member, astopping slide and a spring-pressed pin arranged upon saidspring-actuated member, said pin being adapted to extend through saidspring-actuated member for engagement with the leafturner, and a pivotedmember carried by said spring-actuated member for the temporaryretention of said pin against movement, said pivoted member subsequentlyreleasing said pin, said pin being adapted, simultaneously with theengagement of said pivoted member therewith, to act upon said stoppingslide to allow the turning of said spring-actuated member, concurrentlywith which said pin forces said leaf-turner out of engagement with saidpivoted member.

In testimony whereof, I aiix my signature.

ERNST BEHR.

